DCA GuidelinesGuidelines For a Successful Directional Crossing Bid Package The Distribution Contractors Association (DCA) has been addressing the issue of what information should be made available to contractors and engineers so that future projects proceed as planned. Crossings of rivers and other obstacles using directional drilling techniques are increasingly being utilized around the world. As in any construction project, it is necessary for the contractor to have as much information as possible to prepare a competitive and comprehensive proposal and to be able to successfully install the crossing. Better pre construction information also allows the work to be undertaken more safely and with less environmental disturbance. I. OVERVIEW II. LAYOUT AND DESIGN III. GEOTECHNICAL INVESTIGATION IV. PIPE MATERIAL SELECTION V. PIPELINE COATING Vl. DRILLING SLURRY - CONTAINMENT, RECYCLING AND DISPOSAL Vll. CONDITIONS OF CONTRACT
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